Magnetic Helicity in Sphaleron Debris
arXiv:1105.3744 · doi:10.1103/PhysRevD.83.123530
Abstract
We develop an analytical technique to evaluate the magnetic helicity in the debris from sphaleron decay. We show that baryon number production leads to left-handed magnetic fields, and that the magnetic helicity is conserved at late times. Our analysis explicitly demonstrates the connection between sphaleron-mediated cosmic baryogenesis and cosmic magnetogenesis.
9 pages, 1 figure. v2: Minor revisions; matches published version in Physical Review D
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